Two autograph letters signed, typed letter signed, with biographical sketch in typescript, and printed cards, clipping, and envelope. Topics: Schneid, Otto, 1929-1973, Schneid, Otto, 1929-1973--Correspondence, Schneid, Otto,...
Four autograph letters signed, one autograph note signed, four typed letters, with ephemera and biographical essay by Otto Schneid. Topics: Schneid, Otto, 1929-1973, Schneid, Otto, 1929-1973--Personal and Business Correspondence in...
byFeuster, H. ; Giraudon, Georges ; Duthaler, Georg ; Hodin, J. P. ; Schneid, Otto
Correspondence with curators of galleries and museums. Two autograph letter signed, three autograph notes signed, twenty-three typed letters signed, notes in manuscript by Otto Schneid, with envelopes. Topics: Schneid, Otto, 1929-1973, Schneid, Otto, 1929-1973--Correspondence, Schneid, Otto,...
Research project proposing manipulating the magnetic properties (anisotropy) of a magnetic thin film through the application of an electric field across a tunnel barrier. Proposed in April 2008, reflects the state of the art of that date. 16 pages, in French. Topics: physics, magnetism, nanotechnology, project
Dans cette note, nous montrons que certaines formes modulaires de Siegel de caract\'eristique p et de genre 2 ou 3 se rel\`event en caract\'eristique 0. Ce r\'esultat g\'en\'eralise un th\'eor\`eme classique obtenu par Katz pour les formes de genre 1. Nous utilisons des r\'esultats de Shepherd-Barron et de Hulek et Sankaran, ainsi que des th\'eor\`emes d'annulation de la cohomologie coh\'erente d\^us \`a Deligne, Illusie et Raynaud et \`a Esnault et Viehweg. ----- In this note, we show that... Source: http://arxiv.org/abs/0812.3231v3
byD. Kamburov; Yang Liu; M. Shayegan; L. N. Pfeiffer; K. W. West; K. W. Baldwin
The composite fermion formalism elegantly describes some of the most fascinating behaviours of interacting two-dimensional carriers at low temperatures and in strong perpendicular magnetic fields. In this framework, carriers minimize their energy by attaching two flux quanta and forming new quasi-particles, the so-called composite fermions. Thanks to the flux attachment, when a Landau level is half-filled, the composite fermions feel a vanishing effective magnetic field and possess a Fermi... Source: http://arxiv.org/abs/1302.2540v2
Let M be a 1-motive defined over a field of characteristic 0. To M we can associate its motivic Galois group, G_mot(M), which is the geometrical interpretation of the Munford-Tate group of M. We prove that the unipotent radical of the Lie algebra of G_mot(M) is the semi-abelian variety defined by the adjoint action of the semi-simplified of the Lie algebra of G_mot(M) on itself. Source: http://arxiv.org/abs/math/0305046v1
We describe the scheme of jumping lines of logarithmic vector bundles on the projective plane. This result is already proved by Dolgachev and Kapranov when the first Chern class is even, it is new when the first Chern class is odd. Source: http://arxiv.org/abs/math/0507194v2
byClaudiu-Florinel Bisu; Mihai Ghinea; Alain Gérard; Miron Zapciu; Marin Anica
Vibrations appearance, either unstability system, is the result of the dynamic interaction of the cutting process with the elastic system of machine tools in various working conditions. Our objective is to develop an experimental three-dimensional dynamic model in milling. Our purpose is to applied this model to optimize the cutting parameters and to monitor cutting process, milling tool and machine-tool. To reach the detailed knowledge of the dynamic phenomena we divide our study into two... Source: http://arxiv.org/abs/1201.4088v1